Nope. Avoid anything under £120 at all costs.
G&G make a line of M4 style rifles called Combat Machine, made of high quality tough plastic. They look pretty good and perform well.
However, your best bet is to go to a skirmish and rent guns to try the hobby out and see if you like it. If you're over 18, pursue a site membership or a UKARA defence so you don't have to have your first gun sprayed bright orange/red/green/whatever.
If you aren't over 18 you'll have to get a parent/carer who is over 18 to buy a coloured gun for you, and then you can remove the paint/paint over it with black once you are a regular site attender (more than 3 games in no less than 2 months is the criteria for getting onto the UKARA database, and just generally turning up more than twice and getting to know people works as being regular)
It's not illegal to own a black gun (Realistic Imitation Firearm) but it is illegal for a retailer to sell you one if you're under 18 (for any airsoft gun) or do not have a UKARA defence/site membership.